Q3. GIVE REASON
(3*3=9 marks)
b) How is an ion different from an atom? How cation is different from anion?
c) Why particles of colloidal solution do not settle down when left undisturb while in the case of suspension they do
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b: The difference between an atom and an ion has to do with net electrical charge. ... If electrons are removed, the net charge of the ion will be positive and known as a cation. When electrons are added, the net charge of the ion becomes negative and known as an anion.
c: The colloidal particles are smaller and not heavy. ... Whereas particles of suspension are larger, heavy and have less movement, thus settle down due to gravity.
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